Change `Plugin` and `Message` from `String` to `Data.Text`

Use the `Data.Text` type instead of `String` in most of the places we
use it in `Plugin` and `Message`.

This allows us to more easily pass data between the IRC package. No more
kludgy `pack`s and `unpack`s in our IRC message handler.

The one thing we couldn't convert was our regex. From what I understand
(https://stackoverflow.com/questions/14922579/haskell-regular-expressions-and-data-text#14922626),
the regex library I'm using doesn't support `Data.Text`, so use
`String`s for that instead.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/Message.hs b/src/Message.hs
index 6a95638..db582e9 100644
--- a/src/Message.hs
+++ b/src/Message.hs
@@ -4,12 +4,14 @@ module Message
     , Nick
     ) where
 
-type Channel = String
+import qualified Data.Text as T
 
-type Nick = String
+type Channel = T.Text
+
+type Nick = T.Text
 
 data Message = Message
-    { text    :: String
+    { text    :: T.Text
     , channel :: Channel
     , nick    :: Nick
     }